the condition lever on some FAR25 aircraft Shorts for example was required to be set high during flight for engine spool up requirements
the "speed lever" associated with most garrett installations performs this same function during ground ops it is connected to both the underspeed governor(idle fuel flow) and the propellor governor for selecting rpm (flight mode), as the engine fuel valve is electronic not mechanical on the tpe-331, no cockpit lever is needed to open and close it, except in the emergency feather scenario stop/feather knob